综放工作面大断面切眼采煤机扩掘技术

Expanding Tunneling Technology of Coal Cutters at Fully-mechanized Caving Face

靖远煤业集团有限责任公司红会第一煤矿在1703综放工作面采用了大断面切眼采煤机扩掘技术,不仅缩短了工作面的搬家安装时间,而且降低工人劳动强度、提高了工效,经济效益十分显著。

The expanding tunneling technology of large section open - off cut coal cutters is used at the 1703 fully - mechanized caving face in Honghui First Coal Mine of Jingyuan Coal Group Co. , Ltd. , This technique not only shortens the time of removing face, but also reduces the labor intensity of workers, improves the work efficiency, and its economic benefits is very remarkable.